a because of the following rate I do not now I saw it on the other one
Acceleration means any change in the speed or direction of motion.
Answer:
Explanation:
In the absence of air resistance, the horizontal velocity will not change.
Assuming the ball was caught at ground level,
The time of flight is
t = √(2s/a) = √(2(5.9) / 9.8) = 1.1 s
the horizontal velocity is
vx = 14.6/1.1 = 13.3 m/s
Answer:
553.8 Watts
0.74 Hp
Explanation:
Power is work done per unit time, expressed as
P=W/t
Where P is power, t is time taken and W is work done.
Work is the product of force and perpendicular distance moved hence W=Fd where F is force and d is perpendicular distance.
Substituting W with Fd into the first formula then power is expressed as
P=Fd/t
Substituting F with 600 N, d with 6 m and t with 6.5 seconds then
P=600*6/6.5=553.84615384615 Watts
Rounded off as 553.8W
1 W=0.00134 british horsepower
553.8 W=0.00134*553.8=0.742719926544903597 Hp
Alternatively, we divide the watts by 746 hence 553.8/746=0.7424211177562
Rounding off, power is equal to 0.74 Hp
